POM problem - Height texture does not change anything.

Please help! I am going insane here.

I setup POM material, but no matter what texture I put into Height node, it does not change anything.

POM material setup:

Material instance with default greyscale texture as Height:

Material instance with baked height texture as Height:

As you can see, there’s literally no difference between the two. I can’t figure out why and what did I do wrong.

P.S. Apologies for raw links instead of pictures, but the forum says that imgur url is “invalid” when trying to make it as a picture or attach a file. shrug